Hi all,
i have run some long term test on one of my product. It goes several time at cold temperature of -40°C and I can observe some reboots, especially during these cold step. My logs tell that all reboot are due to PMMSWBOR. Indeed, I send the SYSRSTIV value and it returns always 0x07 or 0x06. (by the way, how LSB could be set?).
If I understand, PMMSWBOR means that the the reboot is software initiated? However I have nothing in the code doing this. So what could be the other source of a PMMSWBOR?
FYI, this product is running on battery and the MSP is supplied with the lower voltage (1.8V). So I thought that the reboot could come from a voltage dropping below cutoff voltage. But I should have a SVSPOR (Supply Voltage Supervisor)?
Do you have any information/advise about that?
Thanks a lot,
Sébastien